Insertion sole for boots and shoes



Oct. 1, 1929. w. KREBS u 1,729,725

l INSERTION SOLE FOR BOOTS AND SHOES Filed Oct. l2, 1927 Patented Oct. l, 1929 UNITED STATES WILLY IIREBS, OF NIEDERLOSSNITZ, NEAR DRESDEN, GERMANY y INSERTION FOR BOOTS AND SHOES Application led October 12, 1927, Serial No. 225,799, and in Germany October 16,l 1926.

Many persons suer from complaints due to standing and walking specially older persons as the heavy body strongly loads the feet. When this complaint is neglected, chronical 5' deformations are caused, as for instance fallen arches.

This invent-ion has for its object to provide an insertion-sole, constructed inaccordance with orthopaedic-points of view.'

Insertion-soles are permanently used by a great number of people. It is a great convenience, when the insertion-sole is adapted to prevent the formation of the above mentioned complaints.

The insertion-soles, according to the invention are cheaper than specially constructed supporting insertions and they are more comortable in wear than such special supporting insertions. A special advantage of the insertion sole is, that the orthopaedic-elements of the sole are interchangeable.

The invention is illustrated, by way of eX- ample, in the accompanying drawing.

Fig. 1 is a top-plan view.

Fig. 2 is a side elevation and Fig. 3 is a section. The insertion-sole is of the'sam'e shape as the commonly usedinsertion soles. It consists of several layers, for instance four, there may however be used any'other number of layers. The two outer layers a, the lower one and the upper one, are somewhat thicker than the two inner layers b. The four layers are not connected by stitching al1 round as usual. The stitch-seam o extends `along one whole side, from the toe and the heel towards the shank portion on the other side and is then bent inward to join the other sidefarther on. The layers are not stitched together at the portion B of the sole, so that at this place three open pockets are formedbetween the A layers.

Although the inner layers b may be of the saine size as the upper andilower layers, it is advisable to give tothe same thesize of the portion B and of a stitching edge. v

These pockets are designed to receive insertions of special type. The lower pocket 'is designed for an insertion d of hard material, for instance sheet-steel, horn, galalite or the like. This insertion d is of such proile that it is 'adapted to the hollow of the foot and supports the same. Into the second or middle pocket an insertion e of cork or similar material is inserted which adapts itself automatically to the profile of the lower insertion d and forms so to say an equalizing layer. The insertion f in the upper pocket is of soft material, for instance felt, to form 'a comfortable support for the sensitive plant of the foot. The insertions d, e and f are removable so that the orthopaedic-proiile can be adapted to the shape and to the conditions of the foot.

The succession of the insertions may be altered or the one or other insertion may he omitted orthe curvature may be increased by additional insertions or the supporting points may vbe otherwise distributed.

The insertion-sole might be used without any insertions. The pockets might be arranged at any other part than the portion B or at the portion B and at any other point.

On the lower layer a a iap g is sewn along the outer edge of the portion B and designed to close lthe free ends of the pockets and to prevent slipping out of the insert-ions.

I claim -An 4insertion sole for supporting fallen arches, comprising in combination with the insertion sole proper composed of several layers sewn together with the exception of a certain portion at one side so that at this portion pockets open at one side are formed, a curved metal spring removably and adjust-- ably inserted in the lower pocket, an insert of elastic material softer than the metal spring removably mounted in the middle ocket, and an insert of soft material removab y mounted in the upper pocket.

In testimony whereof I aix my signature.

WILLY KREBS. 

